package org.madao.gulimall.order.web;

import org.madao.common.exception.NoStockException;
import org.madao.gulimall.order.service.OrderService;
import org.madao.gulimall.order.vo.OrderConfirmVo;
import org.madao.gulimall.order.vo.OrderSubmitVo;
import org.madao.gulimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.concurrent.ExecutionException;

@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;

    @GetMapping("/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo=orderService.confirmOrder();

        model.addAttribute("confirmOrder",confirmVo);
        //展示订单确认的数据
        return "confirm";
    }

    /**
     * 下单功能
     * @return
     */
    @PostMapping("submitOrder")
    public String submitOrder(OrderSubmitVo vo,Model model, RedirectAttributes attributes){
        try {
            SubmitOrderResponseVo responseVo=orderService.submitOrder(vo);
            Integer code = responseVo.getCode();
            if (responseVo.getCode()==0){
                //下单成功来到支付选择页
                model.addAttribute("order",responseVo.getOrder());
                return "pay";
            }else {
                String msg = "下单失败;";
                switch (code) {
                    case 1:
                        msg += "防重令牌校验失败，请刷新在提交";
                        break;
                    case 2:
                        msg += "商品价格发生变化,请确认后再次提交";
                        break;
                    case 3:
                        msg+="库存锁定失败，商品库存不足";
                        break;
                }
                attributes.addFlashAttribute("msg", msg);
                return "redirect:http://order.gulimall.com/toTrade";
            }
        } catch (Exception e) {
            if (e instanceof NoStockException){
                String msg = "下单失败，商品无库存";
                attributes.addFlashAttribute("msg", msg);
            }
            return "redirect:http://order.gulimall.com/toTrade";
        }
    }
}
